By 2008, New Hampshire researchers had tested porous asphalt through four winters; a later study found it could cut annual salt use by 64% to 77%

A comprehensive four-year study by the University of New Hampshire assessed the winter performance of porous asphalt, revealing its exceptional drainage and friction characteristics. The research demonstrated that porous asphalt needed about seventy-five percent less salt each winter. Impressively, this reduction not only upheld but also enhanced safety on the surfaces compared to traditional pavement designs, showcasing the pavement’s effective winter maintenance benefits.
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